How Long Does Knee Replacement Surgery Take?

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Knee replacement surgery, also known as knee arthroplasty, is a surgical procedure that involves replacing a damaged or worn-out knee joint with an artificial joint. The surgery is typically performed to alleviate pain and improve mobility in individuals with severe knee damage, such as osteoarthritis.

The length of time it takes to perform a knee replacement surgery can vary depending on several factors, including the specific type of surgery being performed, the patient's overall health, and the extent of damage to the knee joint.

In general, a knee replacement surgery typically takes anywhere from one to three hours to complete. However, it is important to note that the actual surgery time is only a small part of the overall process. Several other factors can affect the length of time a patient spends in the hospital which can be found below. 

Pre-Operative Preparation

Before the surgery, patients may need to undergo tests, such as blood work or imaging studies, to determine if they are healthy enough for the procedure. They may also need to stop taking certain medications or make other preparations.


Knee replacement surgery is typically performed under general anaesthesia, which means the patient will be unconscious during the procedure. The length of time it takes to administer the anaesthesia and for the patient to recover from it can vary.

Recovery Time

After the surgery, patients will typically need to stay in the hospital for several days to allow for recovery. During this time, they will be monitored for any complications and receive pain medication as needed. Physical therapy may also be started to help with recovery.

Follow-Up Care

Once patients are discharged from the hospital, they will typically need to continue with physical therapy and other follow-up care as recommended by their healthcare provider. This can include visits to the doctor's office or physical therapist, as well as additional tests or procedures.

Overall, the length of time it takes to complete a knee replacement surgery can vary widely depending on the specific circumstances of the patient. Patients need to discuss their situation with their healthcare provider to get a better understanding of what to expect.

What Can Make the Knee replacement Recovery Faster?

Several factors can influence the speed of recovery following a knee replacement surgery. Some strategies that may help to make the recovery process faster include:

  1. Following the post-operative care instructions: Patients need to follow the care instructions provided by their healthcare team, including taking any prescribed medications, participating in physical therapy, and following any activity or weight-bearing restrictions.
  2. Getting plenty of rest: Adequate rest is important for the body to heal and repair itself following surgery. Patients need to get plenty of rest and allow their body time to recover.
  3. Staying active: While it is important to rest and allow the body to heal, it is also important for patients to stay active. Physical therapy and other forms of exercise can help to improve strength and mobility, which can aid in the recovery process.
  4. Eating a healthy diet: A healthy diet can help to support the body's healing process. Patients need to consume a balanced diet that includes plenty of fruits, vegetables, and lean protein.
  5. Managing pain: Pain can be a significant barrier to recovery following a knee replacement surgery. Patients need to manage their pain effectively, either through medication or other methods such as ice or heat therapy, to allow for a faster recovery.

Overall, the key to a faster recovery following a knee replacement surgery is to follow the care instructions provided by the healthcare team, stay active, get plenty of rest, eat a healthy diet, and manage pain effectively.

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